Fix balance data

.gitignore

@@ -1,3 +1,3 @@
 site/
 *.DS_Store
-
+*.diff

docs-2.0/2.quick-start/6.cheatsheet-for-ngql.md

@@ -430,7 +430,7 @@
 
 ## Operation and maintenance statements
 
-* [BALANCE](../synchronization-and-migration/2.balance-syntax.md)
+* [SUBMIT JOB BALANCE](../synchronization-and-migration/2.balance-syntax.md)
 
  |Syntax|Description|
  |-|-|

docs-2.0/3.ngql-guide/4.job-statements.md

@@ -33,6 +33,25 @@ nebula> SUBMIT JOB BALANCE DATA;
 +------------+
 ```
 
+## SUBMIT JOB BALANCE DATA REMOVE
+
+!!! enterpriseonly
+
+ Only available for the NebulaGraph Enterprise Edition.
+
+Starts a job to balance the distribution of storage partitions in the current graph space. The default port is `9779`. It returns the job ID.
+
+For example:
+
+```ngql
+nebula> SUBMIT JOB BALANCE DATA REMOVE 192.168.8.100:9779;
++------------+
+| New Job Id |
++------------+
+| 29 |
++------------+
+```
+
 {{ ent.ent_end }}
 
 <!-- balance-3.1

docs-2.0/3.ngql-guide/9.space-statements/1.create-space.md

@@ -34,7 +34,7 @@ CREATE SPACE [IF NOT EXISTS] <graph_space_name> (
 
 !!! caution
 
- - If the replica number is set to one, you will not be able to load balance or scale out the NebulaGraph Storage Service with the [BALANCE](../../8.service-tuning/load-balance.md) statement.
+ - If the replica number is set to one, you will not be able to load balance or scale out the NebulaGraph Storage Service with the [SUBMIT JOB BALANCE](../../8.service-tuning/load-balance.md) statement.
 
  - Restrictions on VID type change and VID length:
 

docs-2.0/8.service-tuning/load-balance.md

@@ -1,6 +1,6 @@
 # Storage load balance
 
-You can use the `BALANCE` statement to balance the distribution of partitions and Raft leaders, or clear some Storage servers for easy maintenance. For details, see [BALANCE](../synchronization-and-migration/2.balance-syntax.md).
+You can use the `SUBMIT JOB BALANCE` statement to balance the distribution of partitions and Raft leaders, or clear some Storage servers for easy maintenance. For details, see [SUBMIT JOB BALANCE](../synchronization-and-migration/2.balance-syntax.md).
 
 !!! danger
 
@@ -15,9 +15,9 @@ You can use the `BALANCE` statement to balance the distribution of partitions an
 
 !!! note
 
- If the current graph space already has a `BALANCE DATA` job in the `FAILED` status, you can restore the `FAILED` job, but cannot start a new `BALANCE DATA` job. If the job continues to fail, manually stop it, and then you can start a new one.
+ If the current graph space already has a `SUBMIT JOB BALANCE DATA` job in the `FAILED` status, you can restore the `FAILED` job, but cannot start a new `SUBMIT JOB BALANCE DATA` job. If the job continues to fail, manually stop it, and then you can start a new one.
 
-The `BALANCE DATA` commands starts a job to balance the distribution of storage partitions in the current graph space by creating and executing a set of subtasks.
+The `SUBMIT JOB BALANCE DATA` commands starts a job to balance the distribution of storage partitions in the current graph space by creating and executing a set of subtasks.
 
 ### Examples
 
@@ -35,19 +35,19 @@ After you add new storage hosts into the cluster, no partition is deployed on th
  +-----------------+------+----------+--------------+-----------------------+------------------------+----------------------+
  ```
 
-2. Enter the graph space `basketballplayer`, and execute the command `BALANCE DATA` to balance the distribution of storage partitions.
+2. Enter the graph space `basketballplayer`, and execute the command `SUBMIT JOB BALANCE DATA` to balance the distribution of storage partitions.
 
  ```ngql
  nebula> USE basketballplayer;
- nebula> BALANCE DATA;
+ nebula> SUBMIT JOB BALANCE DATA;
  +------------+
  | New Job Id |
  +------------+
  | 25 |
  +------------+
  ```
 
-3. The job ID is returned after running `BALANCE DATA`. Run `SHOW JOB <job_id>` to check the status of the job.
+3. The job ID is returned after running `SUBMIT JOB BALANCE DATA`. Run `SHOW JOB <job_id>` to check the status of the job.
 
  ```ngql
  nebula> SHOW JOB 25;
@@ -63,7 +63,7 @@ After you add new storage hosts into the cluster, no partition is deployed on th
 
  !!! Note
 
- `BALANCE DATA` does not balance the leader distribution. For more information, see [Balance leader distribution](#balance_leader_distribution).
+ `SUBMIT JOB BALANCE DATA` does not balance the leader distribution. For more information, see [Balance leader distribution](#balance_leader_distribution).
 
  ```ngql
  nebula> SHOW HOSTS;
@@ -97,16 +97,16 @@ To restore a balance job in the `FAILED` or `STOPPED` status, run `RECOVER JOB <
 
 !!! note
 
- For a `STOPPED` `BALANCE DATA` job, NebulaGraph detects whether the same type of `FAILED` jobs or `FINISHED` jobs have been created since the start time of the job. If so, the `STOPPED` job cannot be restored. For example, if chronologically there are STOPPED job1, FINISHED job2, and STOPPED Job3, only job3 can be restored, and job1 cannot.
+ For a `STOPPED` `SUBMIT JOB BALANCE DATA` job, NebulaGraph detects whether the same type of `FAILED` jobs or `FINISHED` jobs have been created since the start time of the job. If so, the `STOPPED` job cannot be restored. For example, if chronologically there are STOPPED job1, FINISHED job2, and STOPPED Job3, only job3 can be restored, and job1 cannot.
 
 ### Migrate partition
 
-To migrate specified partitions and scale in the cluster, you can run `BALANCE DATA REMOVE <ip:port> [,<ip>:<port> ...]`.
+To migrate specified partitions and scale in the cluster, you can run `SUBMIT JOB BALANCE DATA REMOVE <ip:port> [,<ip>:<port> ...]`.
 
 For example, to migrate the partitions in server `192.168.8.100:9779`, the command as following:
 
 ```ngql
-nebula> BALANCE DATA REMOVE 192.168.8.100:9779;
+nebula> SUBMIT JOB BALANCE DATA REMOVE 192.168.8.100:9779;
 nebula> SHOW HOSTS;
 +-----------------+------+----------+--------------+-----------------------+------------------------+----------------------+
 | Host | Port | Status | Leader count | Leader distribution | Partition distribution | Version |
@@ -248,12 +248,12 @@ To remove the following storage servers.
 -->
 ## Balance leader distribution
 
-To balance the raft leaders, run `BALANCE LEADER`.
+To balance the raft leaders, run `SUBMIT JOB BALANCE LEADER`.
 
 ### Example
 
 ```ngql
-nebula> BALANCE LEADER;
+nebula> SUBMIT JOB BALANCE LEADER;
 ```
 
 Run `SHOW HOSTS` to check the balance result.

docs-2.0/synchronization-and-migration/2.balance-syntax.md

@@ -1,22 +1,29 @@
 # BALANCE syntax
 
-The `BALANCE` statements support the load balancing operations of the NebulaGraph Storage services. For more information about storage load balancing and examples for using the `BALANCE` statements, see [Storage load balance](../8.service-tuning/load-balance.md).
+We can submit tasks to load balance Storage services in NebulaGraph. For more information about storage load balancing and examples, see [Storage load balance](../8.service-tuning/load-balance.md).
 
-The `BALANCE` statements are listed as follows.
+The syntax for load balance is described as follows.
+
+{{ comm.comm_begin }}
+
+|Syntax|Description|
+|:---|:---|
+|`BALANCE LEADER`| Starts a job to balance the distribution of all the storage leaders in graph spaces. It returns the job ID. |
+
+{{ comm.comm_end }}
+
+{{ ent.ent_begin }}
 
 |Syntax|Description|
 |:---|:---|
 |`BALANCE LEADER`| Starts a job to balance the distribution of all the storage leaders in graph spaces. It returns the job ID. |
-<!-- balance-3.1
 |`BALANCE DATA`| Starts a job to balance the distribution of storage partitions in the current graph space. It returns the job ID. |
 |`BALANCE DATA REMOVE <ip:port> [,<ip>:<port> ...]`| Migrate the partitions in the specified storage host to other storage hosts in the current graph space. |
-|`BALANCE IN ZONE [REMOVE <ip>:<port> [,<ip>:<port> ...]]`| Starts a job to balance the distribution of storage partitions in each zone in the current graph space. It returns the job ID. You can use the `REMOVE` option to specify the Storage services that you want to clear. The partitions of these services will be moved to other services for easy maintenance.|
-|`BALANCE ACROSS ZONE [REMOVE "zone_name" [,"zone_name" ...]]`| Starts a job to balance the distribution of storage partitions across each zone in the current graph space. It returns the job ID. You can use the `REMOVE` option to specify the zones that you want to clear. The partitions of these services will be moved to other services for easy maintenance.|
-
 
 !!! note
 
  `REMOVE` can only clear the partitions of the current graph space. If a Storage service has a large number of graph spaces, you need to switch to all different graph spaces to perform the `REMOVE` operation.
--->
+
+{{ ent.ent_end }}
 
 For details about how to view, stop, and restart a job, see [Job manager and the JOB statements](../3.ngql-guide/4.job-statements.md).